Feed-regulator for centrifugalizing-machines and the like.



S. H. HALL.

FEED REGULATOR FOE GENTRIFUGALIZING MACHINES AND THE LIKE.

APPLICATION FILED JAN.28.1914.

1,121,622. Patented Dec. 22. 1914.

WITNESSES, K3

main srnns PATENT curios.

SELD'JN H. HALL, OF POUGHKEEPSIE, NEW YORK, ASSIGNOR TO THE DE LAVAL SEPARATOR COMPANY, OF NEW YORK, N. Y.. A CORPORATION OF NEW JERSEY.

FEED-REGULATOR FOR CENTRIFUGALIZING-MACHINES AND THE LIKE.

Specification of Letters Patent.

Application filed January 28, 1914. Serial No. 814882.

To all whom it may concern .le it known that I, SELDEN H. HALL, a citizen of the United States, residing at o rhkeepsie, county of Dutchess, State of York, have invented certain new and useful Improvements in Feed-Regulators for (lentrifugalizing-Machines and the like; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to rake and. use the same,

"the present invention relates to means for feeding a liquid from a source of supply into a vessel in which the liquid is to be treated (as, for instance, a liquid centrifugalizing machine) without drawing air intothe vessel. A typical instance, wherein it is thus desirable to exclude the ai'rl'tnom the treating vessel, continuously supplied with the liquid to be treated, is afl'ordechfor instance, bv the centrifugalizing machine illustrated in my co-pcnding application. Ser. No. 756,835, wherein the liquid to be centrii' ugalized is supplied to the machine through the intermediacy of a feed cup.

For purposes of illustration, I have illustrated, in th accompanyingdrawir a feed cup or supply recc 'itacle of a kind adapted to provide a continuous inflow of liquid to such a machine, while preventing the simultaneous ingress of air with the liquid.-

ln the accompanying drawings,Figure 1 represents, in vertical section, a feed cup or receptacle constructed in :urcordance with my invention, the regulating valve thereof being illustrated as in its lowermost position appropriate to the interruption of the feed; Fig. 2 represents a like view. with the regulating valve in its uppermost position, that is to sav, giving unrestricted passage of the liquid from the feed cup into the dis charge pipe thereof; Fig. 3 represents a cross-sectional view on the line 33 of Fig. 1; Fig. 4. represents a cross-sectional view on the line -l4 of Fig. 1. Fig. 5 represents a fragmentary outsi le view.

Similar letters of reference indicate similar parts throughout the several views.

Referring to the drawings,A indicates a feed cup of the kind appropriate to centrifugalizing'machines, said feed cup supporting the discharge tube B which, as usuai, is adapted'to convey the full milk or other liquid to be treated into the centrifugalizing machine. the bottom F of the feed cup is a tube C, containing a stationary plug or abutment. Above and below the abutment, the walls of the tube are provided with'two sets of ports I and J, separated from each other by the said plu": so that liquid entering from the pipe (7 must pass through the ports I in order to gain access to the interior of the feed cup A. and must pass through the ports J in order to gain access to the. discharge pipe. I3. I

To regulate the ports I andJ, a ring valve E is 1' rovidcd, which surrounds the tube C and is connected to the float I) in any suitable manner. as. for instance, by the bars L. To the top of the tube a supply pipe (i may be connected, by the releasable socket and spigot coupling shown, or in any other suitable manner. 7

The mode of operation of the apparatus is as follows: The position oi the float D. in the feed tank is, of course. determined. within the limits of its upward and down ward movement, bythc level of the liquid within theieed cup. 'hen the ring valve If is at its lowermost position, as shown in Figs. 1 and 3. the liquid supplied by the tube C enters the open ports I and rises in the feed cup until the level of the liquid reaches the float l). whereupon the float begins to rise. The rising float raises the ring valve IQ and opens the ports J thereby allowing the liquid to pass through the ports .l and thence into the discharge pipe I5 into the centrituga'lizing machine or other vessol. chine. the entrance oi air into the discharge ports J and into the discharge tubeB is prevented, inasmuch as the liquid level is always higher than the ports J during the feeding operation.

If the quantity of liquid supplied through the pipes G and C and the ports I is greater than the centrifugalizing machine or other treating vessel can take care of, the excess will remain in the feed cup A and will raise the float D and with it the valve E toward the extremeupward position shown in F 2; thus partially or almost completely, as the case may require, closing the ports I and shutting off the entrance of liquid into the feed cup. If, on the other hand, the centrifugalizing machine or other treating vessel tends to withlatented Dec. 22, 1914.

Secured into a socket in During this feed of liquid to the madraw from the Feed eup A. a greater quantity of liquid than is supplied by the pipe (l the entrees will be d awn from the cup A. This will cause the tloat l and the valve if] to descend. thereby partially elosing the. ports J and thus" throttling the feed to the. machine. It will be evident. therefore. that in all positions of the valve 1). and whether the eentritugzalixin r inaehine or other vessel is (qieratine under conditions which require either a'greater or a lesser influx of liquid from the teed eup. a sealing body of the liquid is always present in the feed cup snliieient. to prevent the indrawing of air with the liquid supplied to the machine.

While the specific eonstruetion shown in the drawing peculiarly adaptedto successful use. other etpiivalent constructions may be. employed without departing from the spirit of the invention. which has the conjoint function of preventing eithe' an over-' flow of the liquid with consequent waste thereof, or indrawin e of air with said liquid into the machine. For instance. other forms of valve may be substituted for the ring val\e E and other forms of connection than the rigid bars L may be provided between the float and the valve. .-'\eeordingl v. it will be understood that in the appended claims. the structure detined therein is to have a eorrespondingly eomprebensive interpretation.

Having" thus tllFtl ibed my invention. what I claim is:

1. A reeeptaeie tor l'eeding liquid into a liquid treating apparatus. without drawing air tbereinto. said reeeptaele being provided with a'd seharge. tube leading into the apparatus to be supplied. a valwe at the inlet, to said discharge tube. and a lloat in the re ceptaele eonneeled to said va ve and adapted to so move the .valve as to gradually close the inlet to tbediseharge tube as the level of liquid in the feed receptacle apm'oaehes a predetermined low limit above the liquid sealing level olisaid inlet ports.

2. receptacle 'l'or feeding liquid into a liquid treating apparatus. without. drawing air thereinto, said reeeptacle being provided with a discharge tube leading into the. ap paratus to be supplied, a pipe supplying liquid to the receptacle, and a valve eon- HQCtOtl with a float in the receptacle and governing the outlet from the supply pipe and the inlet to the discharge tube, the relationship of the ports being such that the said inlet shall remain sealed against air admissions in all positions of the valve.

3. A reeeptaele for feeding liquid into a. liquid treating apparatus, without drawing air thereinto, said receptacle being provided with a d eeharge tube leading into the appa- 'ratus to be supplied. a Supply tube. leading into the teed receptaele and in alinement with the discharge. tube. aplug or abutment intermediate of; the. said supply tube and the Paid discharge tube. and a tlo'at-eontrolld valve governing respeeti'rily the entrance of liquid from the supply tube and the egress of liquid into the discharge tube. said valve being ot' the ring type and adapted to move up and down exteriorly of the plug.

reeeptaeie for feeding liquid into a liquid treating apparatus. without drawing air thereinto. said receptaclebeing provided with a diaehargze tube leading into the apparatus to be supplied. an inlet tube for Supplying li uid to the teed receptacle. said inlet tube being in alineinent with said discharge tube. a plug or abutment interposed between the outlet porta of the feed tube and inlet ports ot the discharge tube. an annular sliding valve governing both oi said ports and eneireling the plug. and a iloat sleeved upon the feed tube and connected with the valve.

in QlltflOTtV whereof I a iii my signature, in presence. of two witnesses.

. SELDEN ll. HALL.

Witnesses:

(n.mms L. PowELL, 9. l3. RocmiruLLnR. 

